[Gvsig_english] how to modify attribute table

[roger.taylor at l-3com.com]

I'm a novice GIS user. I am trying to modify the attribute table of a
.shp file of the U.S. Congressional Districts so that I can show "yea"
and "nay" votes on a particular bill. I am assuming there is a way to
add a column to the attribute table where I could put in the vote. Then
I am supposing I can assign colors to the districts based on the way
they voted. Can anyone help me do this? Here is the link to the 110th
Congressional Districts shapefile:
http://nationalatlas.gov/atlasftp.html#cgd110p.

 

If anyone can help I would be very grateful!

 

Roger Taylor

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